Modelling and simulation of textile composite forming
On April 30, 2024 from 11:00 to 13:00 at the Melis Hall (S1b) of the Santa Chiara Complex will be held the lecture Modelling and simulation of textile composite forming by Nahiène Hamila (Dupuy De Lome Research Institute, France).
Abstract:
The presentation delves into the intricacies of modeling and
simulating the shaping process of composite materials, with a particular focus
on establishing a robust framework for modeling dry textile reinforcements
under significant deformations. This framework addresses crucial factors such
as anisotropy and the dissipative nature of fibers inherent in the composite
material.
To effectively capture the dissipative behavior, the
modeling approach employs hysteresis models utilizing fractional derivatives,
alongside the multisurface model proposed by MROZ. These models provide a
sophisticated means of accounting for the complex interplay between material
deformation and energy dissipation, ensuring a more accurate representation of
the composite behavior during shaping processes.
Moreover, for thermoplastic composites, it becomes
imperative to consider the influence of deformation rates and thermokinetics.
This necessitates the integration of these factors across various scales,
thereby enabling a comprehensive understanding of the material's response to
shaping operations.
By incorporating such advanced modeling techniques and
accounting for multifaceted phenomena, researchers and practitioners can gain
deeper insights into the intricate mechanics underlying the shaping of
composite materials. This, in turn, facilitates the optimization of
manufacturing processes and the development of enhanced composite products
tailored to specific applications and performance requirements.
Short bio:
Nahiène Hamila is a Professor at the Dupuy De Lome Research
Institute, Brittany, France. His research work focuses on modelling and
simulation of composite material forming, and to this end he has developed
constitute model models for dry or prepreg composite reinforcements in a
multiphysics and multi-scale framework. He defended his PhD in 2007 and
habilitation in 2017 at INSA Lyon. In 2020 he moved to Brittany, France, for a
full Professor position.
Microsoft Teams code and link: dbJ6XM – https://bit.ly/3PytbtB.